TILLERING AND PROLIFICACY AS STABILIZING TRAITS TO MAIZE GRAIN YIELD AT DIFFERENT DENSITIES

Authors

  • LUIS SANGOI Universidade do Estado de Santa Catarina
  • CLEBER SCHWEITZER Universidadade do Estado de Santa Catarina
  • AMAURI SCHMITT Universidade do Estado de Santa Catarina
  • GILMAR JOSÉ PÍCOLI JR. Universidade do Estado de Santa Catarina
  • VITOR PAULO VARGAS Universidade do Estado de Santa Catarina
  • JEFFERSON VIEIRA Universidade do Estado de Santa Catarina
  • EDUARDO SIEGA Universidade do Estado de Santa Catarina
  • GIOVANI CARNIEL Universidade do Estado de Santa Catarina

DOI:

https://doi.org/10.18512/1980-6477/rbms.v9n3p254-265

Keywords:

Zea mays, segunda espiga

Abstract

The identification of mechanisms that increase maize yield stability can minimize losses to grain yield caused by low plant populations. This study was carried out aiming to evaluate if tillering and prolificacy are effective traits to stabilize maize grain yield at different plant populations. The trial was set in Lages, Santa Catarina, Brazil, during the growing season of 2007/08. Four plant densities (2.5, 5.0, 7.5 e 10.0 pl m-2) and three maize hybrids (P30F53 – tillering, AG9020 - prolific and AS1570, scarce tillering and low prolificacy) were tested. Grain yield ranged from 10,750 to 13,740 kg ha-1 and increased quadratically with the increment in plant population. P30F53 was more productive than AG9020 at the density of 5.0 pl m-2. There was no difference on hybrids grain yield at the other plant populations. The higher tillering ability of P30F53 and prolificacy of AG9020 did not provide them yield advantages, in comparison to AS1570, when maize was grown at the lowest plant population. The favorable climatic, soil and management conditions attenuated yield lost caused by low plant populations, mitigating the importance of tillering and prolificacy as productivity stabilizing traits at sub-optimal stands

Author Biographies

LUIS SANGOI, Universidade do Estado de Santa Catarina

Professor Associado do Departamento de Agronomia da Universidade do Estado de Santa Catarina

CLEBER SCHWEITZER, Universidadade do Estado de Santa Catarina

Aluno do Curso de Mestrado em Produção Vegetal da UDESC.

AMAURI SCHMITT, Universidade do Estado de Santa Catarina

Aluno do curso de doutorado em Produção Vegetal da UDESC.

GILMAR JOSÉ PÍCOLI JR., Universidade do Estado de Santa Catarina

Aluno do curso de Mestrado em Produção Vegetal da UDESC.

VITOR PAULO VARGAS, Universidade do Estado de Santa Catarina

Aluno do curso de Mestrado em Ciência do Solo da UDESC.

JEFFERSON VIEIRA, Universidade do Estado de Santa Catarina

Aluno do curso de Graduação em Agronomia da UDESC.

EDUARDO SIEGA, Universidade do Estado de Santa Catarina

Aluno do curso de graduação em Agronomia da UDESC.

GIOVANI CARNIEL, Universidade do Estado de Santa Catarina

Aluno do curso de graduação em Agronomia da UDESC

Published

2010-12-15

How to Cite

SANGOI, L., SCHWEITZER, C., SCHMITT, A., PÍCOLI JR., G. J., VARGAS, V. P., VIEIRA, J., SIEGA, E., & CARNIEL, G. (2010). TILLERING AND PROLIFICACY AS STABILIZING TRAITS TO MAIZE GRAIN YIELD AT DIFFERENT DENSITIES. REVISTA BRASILEIRA DE MILHO E SORGO, 9(3), 254–265. https://doi.org/10.18512/1980-6477/rbms.v9n3p254-265

Issue

Section

Scientific Paper

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